Apparatus for separating rubber from canvas, metal, and other material.



No. 816,735. 'PATENTED APR. 3, 1906.

H. PENTHER.

APPARATUS FOR SBPARATING RUBBER PROM CANVAS, METAL, AND OTHER MATERIAL.

APPLICATION FILED DEC. 28, 1904.

5 SHEETS-SHEET 1.

llwenz'or:

No. 816,735. PATENTED APR. 3, 1906.

H. PENTHER. APPARATUS FOR SEPARATING RUBBER PROM CANVAS, METAL, ANDOTHER MATERIAL.

APPLICATION FILED D150. 28, 1904.

6, 5 SHEETS-SHBET 2. i 7/ Zl/Tnesses No. 816,735. PATENTED APR. 3, 1906.H. PENTHER.

APPARATUS FOR SEPARATING RUBBER FROM CANVAS, METAL, AND OTHER MATERIAL.

APPLICATION FILED DEC. 23, 1904.

5 SHEETSSHEET 3.

f m. i V

I 7' yg w fw No. 816,735. PATENTED APR. 3, 1906. H. PENTHER.

APPARATUS FOR SEPARATING RUBBER PROM CANVAS, METAL, AND OTHER MATERIAL.I

APPLIOATIQN FILED DBO. 28. 1904.

Z2 4 5 SHEBTSSHEET 4.

Wilnesses fnveizzor:

PATENTED APR. A H. PENTHER. APPARATUS FOR SEPARATING RUBBER FROM CANVAS,METAL, AND OTHER MATERIAL.

APPLICATION FIL 2 2 .9.

ED 1330.28, 1904. v

5 SHEETS-SHEET 5.

- [fever afar IINITED STATES PATENT orrron.

HERMANN PENTHER, OF HANOVER, GERMANY. APPARATUS FOR SEPARATING RUBBERFROM CANVAS, METAL, AND OTHER MATERIAL.

Specification of Letters Patent.

Patented April 3, 1906.

To all whom it may concern.-

Be it known that I, HERMANN PENTHER, a citizen of Germany, residing atHanover, Germany, have invented certain new and useful Improvements inor Relating to Apparatus for Separating Rubber from Canvas, Metal, andother Materials, of which the following is a specification.

This invention relates to an apparatus for effecting the completeseparation of rubber, more particularly of rubber-waste, from canvas,metal, or the like insertions or backing connected to it. I

The apparatus comprises, essentially, a tearing device by means of whichthe forei n substancessuch as canvas, metal, and t e likeare first tornfrom the rubber proper and a series of screening and'sorting devices ofspecial construction.

A construction of the apparatus according to this invention isillustrated by way of example in the accompanying drawings, of WhichFigure 1 is a side elevation; Fig. 2, a front elevation; Fig. 3, asection on the line C D of Fig. 2; Fig. 4, a section on line A B of Fig.3; Fig. 5, a section of E F of Fig. 3. Fig. 6 is a verticalcross-section of the reducing or tearing mechanism; Fig. 7, a verticalsection on line 7 7, Fi 6; Fig. 8 a plan, partly in section, thereo andFlg. 9, a section on line I K, Fi 6.

Ihe reducing or tearing mechanism consists of a cylindrical drumcomposed of an upper solid section 100 and a lower open section 101. Thedrum is supported by a plate 102, that constitutes the cover for acasing 103. The upper solid section 100 is provided on its inner sidewith a series of squared bars 40, having toothed reducing edges.

The lower open section 101 is rovided with spaced triangularreducingars, between which the groundmaterial is free to escape into ahopper 6. The end walls 4 of the easing are provided with inner burs orcorruga-' tions, one of said walls having an inlet 104. Through the drumextends a rotatory shaft 8, upon which is fast the hub 105 of theserrated beaters 3. From thebottom of the tearing mechanism a passage orchute 6 leads into the casing 9, surrounding the screening and sortingdevice. In the upper portion of this casing is arranged an inclinedupper shaking screen or sieve 7, (see Figs. 3 to 5,) provided withfairly-large openings. The frame 7 the 10 of this screen is supported byspringbrackets 11 and is further connected to an eccentric shaft 14 bymeans of a hinge 12 and connecting-rod 13. The frame 10 also carries atubular grating 15, arranged under the sieve 7 and formed of a number ofcloselyarran ed pipes rovided at the top with small oles and a l merginginto a main inletpipe 16. As will be seen in Fig. 1, this inletpipe isconnected to a fan 17.

Under the sieve 7 and grating 15 is an endless upper conveyer-bandtraveling over r0l1 ers 19. On the outer surface of the said band aresecured ledges 20 of such height that they fill up the space between thelower part of the band 18 and the platform 21 under it. Under this firstconveyer is a second lower conveyer 22, the band of which traveling overthe rollers 23 is also provided with ledges 24,

touching the platform 25. The space be tween the platforms 25 and 21 isconnected, by means of apipe 26, to an eXhauster 27. At one end'of theplatform 25 and the conveyer 22 a worm 28 1s arranged, and at the sameend of the platforms 21 and 25 an adjustable fla -valve 29. is provided.In front of this valve is arranged a second valve 30, formed of fouradjustable flaps. The valve 29 can be operated from the outside by meansof a lever 32, as shown in Fig. 1, while the valve 30 is operated bymeans of a lever 33.

The valve 29. is connected to an inclined plane 34, under which isarranged a bristledrum 35. A separate inclined plane 36 leads to thisbristle-drum, and this plane 36 is pro-" vided with a semicircularextension 37 in contact with the ends of the bristles. This bent part 37can be lengthened or shortened by the aid of a suitably-shapedcontinuationpiece 38, which is pivoted, as shown in Fig. 4, andadjustable by means of a lever 39 and in 40, projecting through thecasing. (See ig. 1.)

Below the platform 25 and above the bottorn of the casing 9 an inclinedlowe'r shaking sieve 41 is provided, the inclined bottom 42 of which isconnected to the eccentric shaft 45 by means of a hinge 43 andconnectingrod 44.' The sieve 41, with its bottom 42, 1s supported at oneend by elastic rods 46 and at-t e other end by elastic rods 47. A fan 48is arranged at one end of the said sive,while at the other end twoconveyer-worms 49 and 50 are provided, the casings of which lead intothe reservoirs 51 and 52, Figs. 1 and 2.

Outside the casing 9 is a bucket-elevator or hoist 53, the bottomportion of the casing of which communicates with the casing sur roundingthe previously-mentioned Worm 28, Figs. 2 and 3, while the upper end ofsaid elevator is connectedto the casing of a conveyer-Worm 54, Figs. 1and 2. This conveyer-worm 54 is arranged on the cover of the casing 9,which is provided at one place with an opening connecting the casing ofthe worm 54 with the space above the highest screening device 7 15.

The working of the apparatus is as follows: The rubber to be separatedfrom canvas or metal insertions or backing is introduced throu h thehopper 2 into the tearing device 1. T e rotating arms 3 seize thematerial, and while the points or teeth of the inner surface 4 of thecasing and the grating 5 have the tendency to hold the rubber articlesfast the points or teeth of the arms tear the particles of metalor'canvas away from the rubher. The arts separated from each other fallthrough the slots of the grating 5 and pass through the chute 6 to thesieve 7, the

, openings of which increase in size toward the large to permit lowerend and are sufiicientlfi mg on the sieve all the particles of rubber fato pass through. The light particles or fibers of canvas are carriedupward by the current of air produced by the fan 17 and escape throughthe openings of the tubular grating 15, their passage through the --openi-ngs of the sieve 7 being thus in all cases prevented. The particlesof fibers of canvas pass finall through the opening 55, situated in thewa l of the casing 9 at the end of the sieve '7, into a dust-collectingchamber,.a portion of which is shown at 56, Fig 3. All the heavier rubberparticles, together with the larger canvas fibers and rnetalparticles, fall through the sieve 7 and the slots of the tubular grating15 u on the conveyel-band 18, which travels-in t e direction indicatedby the arrows and feeds the whole material into the well 57, Fig. 3.During the descent of the material down this well currents of airproduced by the exhauster 27 and entering throu h the flap-valves 30take up the specifically 'ghter portion of the material and carry itinto the chamber containing the conveyer-ba-nd 22. These "lightestparticles or fibers areconveyed through the suctionipe 26 to theexhauster 27 and thence into t edust-oollecting chamber 56, while theheavier articles (rubber and coarser fibers, as wel as articles ofmetal) are conveyed by the loan 22, traveling in the-direction of thearrow, to the con veyer-worm28, which conveys the said material to theelevator 53., Fig. 2. Thiselevntor 53 raises the material and 'dro sitinto the casing of the worm 54, by w 'ch it is again conveyed throughthe o ening in the upper cover cf the msmg to t supper sieve 7 so thatthe screening and sorting eperation just described can again take place.The flap-valves 29 and 30 can be set in accordance with the kind ofmaterial. to be treated in such manner as to produce in the well 57horizontal currents of the desired strength. All heavy material nottaken up by the above-mentioned air-currents falls down the well 57 andis conveyed by the inclined planes 34 and 36 to the drum 35, providedwith springy bristles, which brushes the material into the space abovethe sieve 41. A current of air generated by the fan 48 acts upon theparticles so projected into the said space,

and as a consequence all particles of greater specific gravity, moreparticularly the completely-cleaned rubber, fall upon the sieve 41 andpass through. its openings upon the oblique bottom 42. lhey finallypass, owing to theshaking of the whole apparatus, to the worm 49, whichconveys the completelycleaned rubber into the reservoir 51. The lightermateria are conveyed by the air-currents and the sieve 41 to the worm 50and from the latter to the reservoir 52. This unfinished material can beagain brought from the reservoir 52 into the tearing device 1 and repassed through the whole apparatus. In this way the rubber is completelyseparated from foreign substances connected to it.

The upper sieve 7 can be provided at its lower end with lar er openings,so as to leave the material fal ing on the sieve exposed to the actionof air-currents for as long time particles and incompletely-cleanedtween the conveyers, and means for returning the lighter material frombelow the lower gonveyer to the screen, substantially as speci- 2. In amachine for separating rubber from foreign substances, the combinationof a screen, with a pair of conveyers and a well below. the screen,means for inducing a current of air through the well and between theconveyers, and a brush at the bottom of the well, substantially asspecified.

3. In a machine for separating rubber from foreign substances, thecombination of an upper screen, with a pair of conveyers and a we 1below the screen, means for inducing a current of air through the welland between the conveyers, a lower screen, means for returning thelighter particles from below the lower conveyer to the upper screen, andmeans'for carrying the heavier particles from the bottom of the well tothe lower screen, substantially as specified.

4. in a machine for separating rubber from foreign substances, .thecombination of means for tearing the rubber, with an upper the bottom ofthe Well to the lower sereen, 1o reeiprueating screen, means for blowingair substantially as specified.

lhrough said screen, :1 pair of eenveyers and Signed by me at Hanover,(lernmny, this =1 \\'ell below the screen, means for inducing a 5 9th(lay of December, 1904.

eurrent ol 2111 through the Vs ell and between I IIERMA-NN PENTHER' theeenveyers, a loner screen, means for returning the lighter particlesfrom below the Witnesses:

lnwel eonveyer to the upper screen, and LEONORE RAscn, means forenrryingthe heavier particles from ANNA DIPPELL.

